Examples with IAlgebraicRewriteRule org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule used on opensource projects

Example 1 with IAlgebraicRewriteRule

use of org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule in project asterixdb by apache.

the class DefaultRuleSetFactory method buildPhysical.

public static List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> buildPhysical(ICcApplicationContext appCtx) {
    List<Pair<AbstractRuleController, List<IAlgebraicRewriteRule>>> defaultPhysicalRewrites = new ArrayList<>();
    SequentialOnceRuleController seqOnceCtrl = new SequentialOnceRuleController(true);
    SequentialOnceRuleController seqOnceTopLevel = new SequentialOnceRuleController(false);
    defaultPhysicalRewrites.add(new Pair<>(seqOnceCtrl, RuleCollections.buildPhysicalRewritesAllLevelsRuleCollection()));
    defaultPhysicalRewrites.add(new Pair<>(seqOnceTopLevel, RuleCollections.buildPhysicalRewritesTopLevelRuleCollection(appCtx)));
    defaultPhysicalRewrites.add(new Pair<>(seqOnceCtrl, RuleCollections.prepareForJobGenRuleCollection()));
    return defaultPhysicalRewrites;
}

Example 2 with IAlgebraicRewriteRule

use of org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule in project asterixdb by apache.

the class RuleCollections method buildCondPushDownAndJoinInferenceRuleCollection.

public static final List<IAlgebraicRewriteRule> buildCondPushDownAndJoinInferenceRuleCollection() {
    List<IAlgebraicRewriteRule> condPushDownAndJoinInference = new LinkedList<>();
    condPushDownAndJoinInference.add(new PushSelectDownRule());
    condPushDownAndJoinInference.add(new PushSortDownRule());
    condPushDownAndJoinInference.add(new RemoveRedundantListifyRule());
    condPushDownAndJoinInference.add(new CancelUnnestWithNestedListifyRule());
    condPushDownAndJoinInference.add(new SimpleUnnestToProductRule());
    condPushDownAndJoinInference.add(new ComplexUnnestToProductRule());
    condPushDownAndJoinInference.add(new DisjunctivePredicateToJoinRule());
    condPushDownAndJoinInference.add(new PushSelectIntoJoinRule());
    condPushDownAndJoinInference.add(new IntroJoinInsideSubplanRule());
    // Apply RemoveCartesianProductWithEmptyBranchRule before PushMapOperatorDownThroughProductRule
    // to avoid that a constant assignment gets pushed into an empty branch.
    condPushDownAndJoinInference.add(new RemoveCartesianProductWithEmptyBranchRule());
    condPushDownAndJoinInference.add(new PushMapOperatorDownThroughProductRule());
    condPushDownAndJoinInference.add(new PushSubplanWithAggregateDownThroughProductRule());
    condPushDownAndJoinInference.add(new SubplanOutOfGroupRule());
    condPushDownAndJoinInference.add(new AsterixExtractFunctionsFromJoinConditionRule());
    condPushDownAndJoinInference.add(new RemoveRedundantVariablesRule());
    condPushDownAndJoinInference.add(new AsterixInlineVariablesRule());
    condPushDownAndJoinInference.add(new RemoveUnusedAssignAndAggregateRule());
    condPushDownAndJoinInference.add(new FactorRedundantGroupAndDecorVarsRule());
    condPushDownAndJoinInference.add(new PushAggregateIntoNestedSubplanRule());
    condPushDownAndJoinInference.add(new EliminateSubplanRule());
    condPushDownAndJoinInference.add(new PushProperJoinThroughProduct());
    condPushDownAndJoinInference.add(new PushGroupByThroughProduct());
    condPushDownAndJoinInference.add(new NestGroupByRule());
    condPushDownAndJoinInference.add(new EliminateGroupByEmptyKeyRule());
    condPushDownAndJoinInference.add(new PushSubplanIntoGroupByRule());
    condPushDownAndJoinInference.add(new NestedSubplanToJoinRule());
    condPushDownAndJoinInference.add(new EliminateSubplanWithInputCardinalityOneRule());
    // The following rule should be fired after PushAggregateIntoNestedSubplanRule because
    // pulling invariants out of a subplan will make PushAggregateIntoGroupby harder.
    condPushDownAndJoinInference.add(new AsterixMoveFreeVariableOperatorOutOfSubplanRule());
    return condPushDownAndJoinInference;
}

Example 3 with IAlgebraicRewriteRule

use of org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule in project asterixdb by apache.

the class PigletRewriteRuleset method buildCondPushDownRuleCollection.

public static final List<IAlgebraicRewriteRule> buildCondPushDownRuleCollection() {
    List<IAlgebraicRewriteRule> condPushDown = new LinkedList<IAlgebraicRewriteRule>();
    condPushDown.add(new PushSelectDownRule());
    condPushDown.add(new InlineVariablesRule());
    condPushDown.add(new FactorRedundantGroupAndDecorVarsRule());
    condPushDown.add(new EliminateSubplanRule());
    return condPushDown;
}

Example 4 with IAlgebraicRewriteRule

use of org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule in project asterixdb by apache.

the class PigletRewriteRuleset method buildPhysicalRewritesAllLevelsRuleCollection.

public static final List<IAlgebraicRewriteRule> buildPhysicalRewritesAllLevelsRuleCollection() {
    List<IAlgebraicRewriteRule> physicalPlanRewrites = new LinkedList<IAlgebraicRewriteRule>();
    physicalPlanRewrites.add(new PullSelectOutOfEqJoin());
    physicalPlanRewrites.add(new SetAlgebricksPhysicalOperatorsRule());
    physicalPlanRewrites.add(new EnforceStructuralPropertiesRule());
    physicalPlanRewrites.add(new PushProjectDownRule());
    physicalPlanRewrites.add(new CopyLimitDownRule());
    return physicalPlanRewrites;
}

Example 5 with IAlgebraicRewriteRule

use of org.apache.hyracks.algebricks.core.rewriter.base.IAlgebraicRewriteRule in project asterixdb by apache.

the class PigletRewriteRuleset method prepareForJobGenRuleCollection.

public static final List<IAlgebraicRewriteRule> prepareForJobGenRuleCollection() {
    List<IAlgebraicRewriteRule> prepareForJobGenRewrites = new LinkedList<IAlgebraicRewriteRule>();
    prepareForJobGenRewrites.add(new IsolateHyracksOperatorsRule(HeuristicOptimizer.hyraxOperatorsBelowWhichJobGenIsDisabled));
    prepareForJobGenRewrites.add(new ExtractCommonOperatorsRule());
    // Re-infer all types, so that, e.g., the effect of not-is-null is
    // propagated.
    prepareForJobGenRewrites.add(new PushProjectIntoDataSourceScanRule());
    prepareForJobGenRewrites.add(new ReinferAllTypesRule());
    return prepareForJobGenRewrites;
}